Reduction of solid materials to a smaller average particle size
Comminution is the reduction of solid materials from one average particle size to a smaller average particle size, by crushing, grinding, cutting, vibrating, or other processes.[1][2] In geology, it occurs naturally during faulting in the upper part of the Earth's crust.[3] In industry, it is an important unit operation in mineral processing, ceramics, electronics, and other fields, accomplished with many types of mill. In dentistry, it is the result of mastication of food. In general medicine, it is one of the most traumatic forms of bone fracture.
Within industrial uses, the purpose of comminution is to reduce the size and to increase the surface area of solids. It is also used to free useful materials from matrix materials in which they are embedded, and to concentrate minerals.[2]
^Gupty, Chiranjib Kumar (2003). Chemical Metallurgy. Wiley-VCH Verlag. p. 130. ISBN 9783527605255. Retrieved August 22, 2010.
^ abKanda, Yoshiteru; Kotake, Naoya (2007). "Chapter 12: Comminution Energy and Evaluation in Fine Grinding". In Salman, Agba D.; Hounslow, Michael J. (eds.). Handbook of Powder Technology, Volume 12: Particle breakage. Elsevier. pp. 529–551. ISBN 9780080553467. Retrieved August 20, 2010.
^Sibson, R.H. (1986). "Earthquakes and rock deformation in crustal fault zones" (PDF). Annual Review of Earth and Planetary Sciences. 14: 156. Bibcode:1986AREPS..14..149S. doi:10.1146/annurev.ea.14.050186.001053. Retrieved 2 July 2011.
Comminution is the reduction of solid materials from one average particle size to a smaller average particle size, by crushing, grinding, cutting, vibrating...
certain concentration processes from occurring. Comminution is particle size reduction of materials. Comminution may be carried out on either dry materials...
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Comminution dating is a developing radiometric dating technique based on the disequilibrium between uranium isotopes in fine-grained sediments. An alpha-particle...
Volar or dorsal tilt Radial inclination Radial length and ulnar variance Comminution of the fracture (the amount of crumbling at the fracture site) Open (compound...
differentiable from flour as having slightly coarser particle size (degree of comminution)[further explanation needed] or is synonymous with flour; the word is...
comminution", counting those of Peter von Rittinger and Friedrich Kick as the first and second. This term and the terminology of "laws of comminution"...
processing. Sausages are a common form of secondary processed meat, formed by comminution (grinding) of meat that has already undergone primary processing. Most...
original (PDF) on 2016-03-04. Retrieved 2015-12-08. "Size reduction, comminution". Grinding and milling. PowderProcess.net. Retrieved 27 October 2017...
classification is a system of categorizing femoral shaft fractures based upon the degree of comminution. "Wheeless Online". Retrieved 30 October 2014. v t e...
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requires comminution, i.e., grinding the ore into fine particles to facilitate extraction of the target element(s). Because of this comminution, tailings...
Stickland, Robin John Battheram, and the University of Melbourne for the comminution and/or removal of liquid from a material. The World Intellectual Property...
techniques are often utilised before mixing the raw materials, with comminution being effectively universal for non-clay materials. Examples of non-clay...
amount of energy that is required for comminution depends on the rate at which the minerals dissolve (less comminution is required for rapid mineral dissolution)...
Cataclasite is a cohesive granular fault rock. Comminution, also known as cataclasis, is an important process in forming cataclasites. They fall into...
present, they were attacked using fire-setting and the ore removed for comminution. The dust was washed in a small stream of water and the heavy gold dust...
continuously operating crushing machines that achieved more reliable comminution were already coming into use. Starting in 1967, Los Angeles-based artist...
by metal ore mines. The raw ore is usually ground finely in various comminution operations and gangue (waste) is removed, thus concentrating the metal...
used in mineral processing to describe particle size distributions in comminution processes. In this context the cumulative distribution is given by f...
material handling from overburden removal, to raw material extraction, comminution, conveying, loading/unloading, processing, homogenizing, blending and...
different methods used to process materials. In one sense, it is a form of comminution (reducing the particle size of a substance). In another sense, it is...
with a large single fracture of the posterior acetabular rim III with comminution of the acetabular ring IV with a fracture of the acetabular floor V with...
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processing. Sausages are a common form of secondary processed meat, formed by comminution (grinding) of meat that has already undergone primary processing. Most...
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